This year's report includes an update of the status of high-speed rail corridors and pedestrian and bicycle safety. In addition to vehicle emissions, the expanded discussion on environmental impacts includes transportation infrastructure, equipment manufacturing, and vehicle maintenance and disposal.

This report provides a comprehensive assessment of the nation's transportation system and the state of transportation statistics. This report analyzes trends and recent developments related to travel, freight movement, system extent and condition, the economic performance of transportation, safety, energy, and the environmental consequences of transportation. This report is a companion to the National Transportation Statistics report.